Reese Class III/IV Ball Mount 4 Inch Drop, 21344 Class III/IV; Ball Mount; 7500 lb. GTW/700 lb. Tongue Weight; 2 in. Receiver; 1 in. Ball Hole; 9 in. Length; 4 in. Drop; 2.75 in. Rise; Black Finish Reese Reese Class III/IV Ball Mount (Black) - 21344 21344 Trailer Hitch Ball Mount